Threat Database Trojans Trojan.Downloader.Cutwail.BT

Trojan.Downloader.Cutwail.BT

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 145
First Seen: August 21, 2012
Last Seen: June 12, 2025
OS(es) Affected: Windows

The detection of Trojan.Downloader.Cutwail.BT on your system indicates a potential security threat. This detection name suggests a type of malicious software that could be used to download additional malware or unwanted programs onto your computer. It is essential to understand the nature of this threat and take immediate action to remove it and prevent further damage.

What Is Trojan.Downloader.Cutwail.BT?

Trojan.Downloader.Cutwail.BT is a type of Trojan horse malware. Trojan horses are malicious programs that disguise themselves as legitimate software but actually allow unauthorized access to your computer. The "Downloader" part of the name implies that this malware is designed to download and install other malicious programs or files from the internet. This could lead to a range of problems, including data theft, system crashes, and the installation of additional malware.

How Trojan.Downloader.Cutwail.BT Operates

Malware like Trojan.Downloader.Cutwail.BT typically operates by exploiting vulnerabilities in your system or applications. Once installed, it can connect to remote servers to download additional malware or receive instructions from its creators. This malware can be distributed through various means, including email attachments, infected software downloads, or by visiting compromised websites. Understanding how such malware operates is crucial for taking the right steps to protect your system and data.

Symptoms of Infection

Identifying the symptoms of a Trojan Downloader infection can be challenging because it often runs in the background without obvious signs. However, some common indicators of a malware infection include slow system performance, unexpected pop-ups, unfamiliar programs or toolbars in your browser, and unexpected changes to your system settings. Additionally, you might notice that your internet connection is being used more than usual, even when you're not actively browsing the web.

  • Unexplained changes in system settings or browser configuration.
  • Appearance of unfamiliar programs or icons on your desktop.
  • Frequent system crashes or freezes.
  • Increased internet activity without obvious cause.

How to Remove Trojan.Downloader.Cutwail.BT

  1. Boot your computer in Safe Mode with Networking. This will limit the malware's ability to interfere with the removal process while still allowing you to download necessary tools.
  2. Download and run a full scan with a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated with the latest definitions to increase the chances of detecting and removing the malware.
  3. Uninstall any suspicious programs that you do not recognize or that were installed around the time you noticed the malware symptoms.
  4. Reset your browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the malware.
  5. After completing the above steps, reboot your computer and run another full scan with your anti-malware tool to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Downloader.Cutwail.BT requires careful and immediate action to prevent further damage to your system and data. By following the steps outlined above and maintaining good computer hygiene practices, such as regularly updating your operating system and applications, using strong antivirus software, and being cautious with emails and downloads, you can significantly reduce the risk of future infections. Remember, prevention is key, but when infections do occur, acting quickly and using the right tools can make all the difference in protecting your digital security.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
AVG SHeur4.AEUH
Fortinet W32/Zbot.AAC!tr
AhnLab-V3 Win-Trojan/Jorik.19144
Sophos Troj/Jorik-X
BitDefender Gen:Variant.Kazy.72643
Kaspersky Trojan.Win32.Jorik.Totem.gn
McAfee PWS-Zbot.gen.aac
CAT-QuickHeal Trojan.Totem.gn
AVG Dropper.Generic6.AKPS
Kaspersky Trojan-Dropper.Win32.Dorifel.gea
K7AntiVirus Riskware
McAfee Generic Dropper!1vr
CAT-QuickHeal TrojanDropper.Dorifel.gea
AVG Generic28.CDLI
AhnLab-V3 Win-Trojan/Jorik.20920

File System Details

Trojan.Downloader.Cutwail.BT may create the following file(s):
# File Name MD5 Detections
1. escsrv.osf 2909d19d70714ae8dd93ada3e73653d6 65
2. wsyqfe1cv1.exe cfb64f19c151de10eda2cea3a1714e0c 19
3. dns.exe a53da54a363921d489a7f598d7ea051b 13
4. yodrive32.exe 80bbde226479626d1f456253d52852f2 6
5. rtx6gcsh1u.exe 5088be2bd8808166005ce0d522c169a5 3
6. ld678br66u.exe 73129dc7cd4dba4d56e7694740e9b976 2
7. kji4j5hwg3.exe acc9787988ca77762ec228297b889cdd 2
8. 62rr45s6xr.exe ff1cd21044f1659728480a5bff1d8aa9 2
9. msbyso.exe 5dc1801dfcbf51c6c4ccb10868646de1 2
10. edk1fjfchk.exe 0a6e5d1a7d351df1bbfa76cdc30ecbae 2
11. oktzhnwp.dll ffdecf5410350e3905303bf25489623d 1
12. 3E.exe 0eda69a0d355abd5bdd217759f0b0867 1
13. nwnhtrsg.exe ce8defad4bd83e491e1dc5aebf206f5a 1
14. pg9rcc4g96.exe 5912cc47aa5ccdb266faced807978725 1